DISTRIBUTION OF POWER GATING CONTROLS FOR HIERARCHICAL POWER DOMAINS
First Claim
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1. An integrated circuit device, comprising:
- a first module disposed within a first power domain;
a second module disposed in a second power domain that is a sub-domain of the first power domain;
first power gating logic for generating a first virtual power supply for the first module; and
second power gating logic powered by the first virtual power supply for generating a second virtual power supply for the second power domain.
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Abstract
An integrated circuit device includes a first module disposed within a first power domain, a second module disposed in a second power domain that is a sub-domain of the first power domain, first power gating logic, and second power gating logic. The first power gating logic generates a first virtual power supply for the first module. The second power gating logic is powered by the first virtual power supply for generating a second virtual power supply for the second power domain.
28 Citations
20 Claims
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1. An integrated circuit device, comprising:
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a first module disposed within a first power domain; a second module disposed in a second power domain that is a sub-domain of the first power domain; first power gating logic for generating a first virtual power supply for the first module; and second power gating logic powered by the first virtual power supply for generating a second virtual power supply for the second power domain. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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generating a first virtual power supply for a first module of an integrated circuit device disposed within a first power domain using first power gating logic; and generating a second virtual power supply for a second module of the integrated circuit device disposed within a second power domain that is a sub-domain of the first power domain using second power gating logic powered by the first virtual power supply. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A processor, comprising:
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a processing core disposed in a core power domain; a cache disposed in a cache power domain within the core power domain; core power gating logic for generating a first virtual power supply for the core power domain; and cache power gating logic powered by the first virtual power supply for generating a second virtual power supply for the cache. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification